fix: ManagerVerification手动插入默认弹药, 数据库无JSON时表为空

src/Unity/Assets/Scripts/Managers/ManagerVerification.cs

@@ -48,6 +48,7 @@ namespace CounterDrone.Unity
             Debug.Log("3. Scenario configured");
 
             var db = new DatabaseManager(paths).OpenMainDb();
+            foreach (var a in DefaultAmmunition.GetAll()) db.Insert(a);
             var ammoCatalog = db.Table<AmmunitionSpec>().ToList();
 
             var detail = scenarioMgr.GetDetail(taskId);